January in Xi’an averages a daily high of 5.3°C with nights around -2.8°C. Expect roughly 3.1 wet days totalling 7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Xi’an is April–May.
Based on XIAN, CH (4.7km), 1995–2024. 14 years of January data.